Move all fast-path paint invalidation mapping into PaintInvalidationState

third_party/WebKit/Source/core/paint/SVGContainerPainter.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/SVGContainerPainter.h"
 
 #include "core/layout/svg/LayoutSVGContainer.h"
 #include "core/layout/svg/LayoutSVGViewportContainer.h"
 #include "core/layout/svg/SVGLayoutSupport.h"
 #include "core/paint/FloatClipRecorder.h"
 #include "core/paint/ObjectPainter.h"
 #include "core/paint/PaintInfo.h"
 #include "core/paint/SVGPaintContext.h"
 #include "core/paint/TransformRecorder.h"
 #include "core/svg/SVGSVGElement.h"
 #include "wtf/Optional.h"
 
 namespace blink {
 
 void SVGContainerPainter::paint(const PaintInfo& paintInfo)
 {
     // Spec: groups w/o children still may render filter content.
     if (!m_layoutSVGContainer.firstChild() && !m_layoutSVGContainer.selfWillPaint())
         return;
 
     FloatRect boundingBox = m_layoutSVGContainer.paintInvalidationRectInLocalSVGCoordinates();
-    if (!paintInfo.cullRect().intersectsCullRect(m_layoutSVGContainer.localToSVGParentTransform(), boundingBox))
+    // LayoutSVGHiddenContainer's paint invalidation rect is always empty but we need to paint its descendants.
+    if (!m_layoutSVGContainer.isSVGHiddenContainer()
+        && !paintInfo.cullRect().intersectsCullRect(m_layoutSVGContainer.localToSVGParentTransform(), boundingBox))
         return;
 
     // Spec: An empty viewBox on the <svg> element disables rendering.
     ASSERT(m_layoutSVGContainer.element());
     if (isSVGSVGElement(*m_layoutSVGContainer.element()) && toSVGSVGElement(*m_layoutSVGContainer.element()).hasEmptyViewBox())
         return;
 
     PaintInfo paintInfoBeforeFiltering(paintInfo);
     paintInfoBeforeFiltering.updateCullRect(m_layoutSVGContainer.localToSVGParentTransform());
     TransformRecorder transformRecorder(paintInfoBeforeFiltering.context, m_layoutSVGContainer, m_layoutSVGContainer.localToSVGParentTransform());
@@ skipping 22 matching lines @@
         PaintInfo outlinePaintInfo(paintInfoBeforeFiltering);
         outlinePaintInfo.phase = PaintPhaseSelfOutlineOnly;
         ObjectPainter(m_layoutSVGContainer).paintOutline(outlinePaintInfo, LayoutPoint(boundingBox.location()));
     }
 
     if (paintInfoBeforeFiltering.isPrinting())
         ObjectPainter(m_layoutSVGContainer).addPDFURLRectIfNeeded(paintInfoBeforeFiltering, LayoutPoint());
 }
 
 } // namespace blink